Star couplings consist of two jaw hubs (gray cast iron, aluminum, or ductile iron) and intermediate elements known as a spider (material nitrile rubber or polyurethane) to torque transmission and damping of torsional vibration.
Star couplings are characterized by small dimensions, low weight, require no lubrication, are resistant to oil, dirt, sand, moisture, and grease, and provide highly reliable service for light, medium, and heavy-duty power transmission applications.
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